Apparatus for milling, justifying, and measuring matrices, &amp;c.



no. 687,78l. Patented 0%.. 3,,|9o|. F. u. PIERPONT.

APPARATUS FOR MILLING, JUSTIFYINIL' AND MEASURING MATRICES, 6w.

, (Application June 5, 1901A (lib Model.

7 Shoots-Sheet I.

vum

No. 687,78l. P fented D00. 3, I90I.

F. H. PIERPONT. APPARATUS FOR MILLING, JUSTIFYING, AND MEASURINGMATRICES, 81.0.

(Application'flled June 5, 1901.) (No MndaL). 7 Shouts-Sheet 2.

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Patented Dec. 3. I90].

F. H. PIERPUNT. APPARATUS FOR MILLING, JUSTIFYING, AND MEASURINGMATRICES, 8w.

(Application filed June 5, 1901.)

7 Sheets-Sheet 3.

(No Model.)

we warns PETERS co, worauma, WASHINGTON u. c,

Nd. 687,78l. v Patented Dec. 3, I901. F. H. PIERPUN-T.

(Application filed June 6, 1901.)

G MATRICES, 81.0..

7 Shaets$haet 4.

THE Nonms PEYERS co. PHOTOLITMO" WASHINGYON, n, c.

Patehted Dec. 3, I901.

' 7 Sheets'-Shaet 5.

No. 687,781. I

F. H. PIEBPONT. APPARATUS FOB IMLLING, JUSTIFYING, AND' MEASURINGMATBIGES 81.0. (Application filed. June 5, 190 1.)

No Model.)

No. 687,78l. Patented Dec. 3, 19m. F. H. PIERPONT.

APPARATUS FOR MILLING, JUSTIFYING, AND MEASURING MATRICES, 8L0.

(Application filed June 5, 1901.) (No Model.) 7 Sheets,$heet 6.

m: Noims PETERS ca, Puorrxumo, WASNINETON, n. c.

No. 687,78l. Patented Dec. 3, [90L F. H. PIERPUN'II'. APPARATUS FORMILLING, JUSTIFYING, AND MEASURING MATRICES, 8142:

(Application filed June 5, 19m.)

7 Sheets-shat 7.

(No Model.)

M ZZMW THE Nonms vcrzns co. Pumouma. WASHINGTON, n cy UNITED STATES PTENT OFFICE.

FRANK IIIN MAN PIERPON T, OF HORLEY, ENGLAND, ASSIGNOR TO LANSTONMONOTYPE MACHINE COMPANY, OF WASHINGTON, DISTRICT OF COLUM- BIA, ACORPORATION OF VIRGINIA.

APPARATUS FOR MILLING, lUSTlFYlNG, AND MEASURING MATRICES, dc.

SEEGIFICATION forming part of Letters Patent No. 687,781, dated.December 3, 1901.

Application filed June 5, 1901. Serial No. 63,284. (No model.)

To all whom it may concern.-

Be it known that I, FRANK HINMAN PIER- PONT, a citizen of the UnitedStates, residing at I-Iorley, in the county of Surrey, England,

have invented certain new and useful Improvements in or Relating toApparatus for Milling, Justifying, and Measuring Matrices I 5 ing andmeasuring machine speciallyintended for reducing the matrices used intype-casting machines to uniform length and to uniform depth of drive,but capable of being used for measuring and milling other bodies.

I11 the accompanying drawings, Figure lisa front elevation of apreferred construction of machine according to this invention adaptedfor finishing and testing matrices such as are used in type casting andsetting machines of the Lanston monotype class. Fig. 2 is a plan, partlyin section. Fig. 3 is a right-hand end elevation. Fig. 4c is a sectionon the line 4 at of Figs. 1 and 2. Fig. 5 is a section on the line 5 5of Figs. 1 and 2, the standard and bed-plate being broken away. Figs. 6,7, and

8 are plans, partly in section, of the central portion of the machine,showing threediiferent positions of the matrix and its measuring device.Fig. 9 is a front elevation, partlyin 5 section, of the matrix-holder.Fig. 10 is a side and end view of the measuring-needle and its holderdetached. Fig. 11 shows two views of the needle-controlling camdetached,

and Fig. 12 is a perspective view of a matrix.

Like letters of reference in the several figures indicate the sameparts.

Carried on a bed-plate A by standards A A A is a bed A, having a centrallongitudinal dovetail slot A. Fixed centrally on and 5 at right anglesto the bed A, by means of-bolts A, is a frame B, of which the sides 13form guides for a slide 0, having a gooseneck O,

" in which is a rod D, formed with an angle in its lower end adapted toengage one corner of a matrix. This rod forms the upper jaw of agripping device and is capable of vertical reciprocation by means of ascrew D The lower jaw D, shaped to engage two adjacent sides of thematrix, forms the head of a dovetailed bar D capable of verticalreciprocation in a block 0*, held in a recess in the front of the slideO. The block O has a backward extension O from the front of whichextends a lug C in which is engaged the stem of a micrometer-screw D,which engages a screwthread in the bar D The screw D is provided with adisk D marked with a scale, allowing a very fine adjustment of thescrew, and consequently of the lower jaw D of the gripping device, in avertical direction.

Engaged in the front wall of the frame B is a second micrometer-screw Bhaving an adjusting-disk B provided; with a finelygraduated scale. Theend of this screw abuts against a hardened-steel plug O5, inserted inthe front of the slide O, limiting the forward movement of the saidslide, andthns admitting of a very fine adjustment of the gripping-jawsin a horizontal direction.

The slide O is reciprocated in the frame B by means of a bell-cranklever O pivoted at A in lugs on the back of the standard A, thehandle-arm of the lever conveniently extending to the front of themachine and working in a slot in said standard. The short arm ofthelever is pivotally connected by a link 0 to the head of a pin 0fastened in the slide O. The pin Works in a slot B, provided for thatpurpose in the frame B. The handle of the lever O is raised to move theslide backward and is made of such a weight that when uncontrolled itholds the slide normally in its most. forward positionthat is, engagedwith the end of the micrometerscrew B as seen in Fig. 4. Extremeaccuracy of movement is necessary on the part of the slide 0, andconveniently one of the guideways is formedof a hardened-steel bar Badjustable by screws B, as seen best in Figs. 2 and 9.

Fastened onto one side of the frame Bis a plate E, having a 'boss E,which is formed with a central chamber to receive the positioning andmeasuring needle holder F. (Shown detached in Fig. 10.) Thefneedle F toois secured in one end of the holder, which is provided with a collar Fand offset F On the front of the boss is secured a cap E having acentral raised portion E which forms a fixed stop. The boss is sopositioned relative to the gripping device that when the latter is inits normal or forward position the needle coincides with the drive of amatrix when resting in the lower jaw. Behind the collar F on the holderF is a coiled spring F which tends normally to hold the needle in itsmost forward position, as shown in Figs. 2 and 7.

Pivoted on a pin E in a recess in the side of the boss E is a shortcylindrical block F Fig. 11, having a handle F. This block is recessedto engage the needle-holder offset F the front surface of the recessforming a camcurve F which engages the front edge of the oifset and isso shaped that when the handle F is in its raised position (see Fig. 6)the needle-holder is forced back against the tension of the spring Fwhile when the handle is lowered, as shown in Fig. 7, the needleholderis in its forward position, a stop F placed on the cam-block, so as tobe behind the offset when in this position, preventing the holder fromany possibility of backward movement. Fastened onto the plate E on theopposite side to the boss E is a cylindrical flanged casing G, in whichis held a micrometer-screw placed so as to be in line with theneedle-holder, but normally not in contact with the same. The casing Gand its micrometer are electrically insulated from the rest of themachine by a washer G This 1nicrometer-screw may be of any usualconstruction and need not therefore be particularly described. Fastenedonto its head is a Vertical metal arm or bar G surmounted by a quadrantG,marked with a deeply-indented scale. one side of which is lined with astrip G of insulating material, Fig. 3.

Placed above the micrometer-screw is an electromagnet H, its yoke beingconveniently fixed on the top of the plate E by a screw H, carefullyinsulated, however, from the plate by non-conducting washers H Fig. 1.One wire of the electromagnet is connected with one terminal of anelectric battery or other source of electricity, and the other terminalof said battery being connected to the needleholder block, as indicatedby lines X, Fig. 1, or other convenient part of the machine, such as thestandard A, as shown in Fig. 3. The other wire of the electromagnet maybe connected to the yoke or frame, as at X. Thus the battery-circuit ismade to contain or include two contact devices, the one formed by theneedle-holder and micrometer-screw and the other by the arm G3 andhandle H The magnet-armature is provided with a knife-blade end H whichextends over the quadrant G and is adapted to engage with the indentedlines of the quadrant-scale when the magnet is excited. A rocking arm HThe bar G is provided with a slot G pivoted onto the lower plate of theyoke, is provided with a handle H loosely engaged in the slot G5 of thearm G of the micrometerscrew. By moving the handle H to the right, Fig.3, the micrometer-screw will be advanced toward the needle-holder and atthe same time the electromagnet will be connected electrically with themicrometer-screw by the contact of the arm H with the uninsulated sideof the slot G On the other hand, by moving the handle toward the left,Fig. 3, the micrometer-screw will be withdrawn farther from theneedle-holder, while owing to the insulation G the handle being now heldagainst the insulated side of the slot,electrical connection between themagnet and the screw will be broken.

The machine now being described is intended to detect errors of oneten-thousandth of an inch within a range of one one-thousandth above orbelow normal. The micrometer-screw is so placed relatively to the end ofthe needle-holder that their ends will come in contact in the operationof measuring (to be hereinafter described) if the matrix drive be ofnormal depth when the armature head or catch is over the middle or zerograduation of the quadrant, as shown in Fig. 3. Ten graduation-marks,each representing a movement of the micrometer-screw through oneten-thousandth of an inch, are provided on each side of this zero-mark.\Vhen the handle is moved toward the right, it touches the side of theslot before it can alter the position of the screw, thus completing thecircuit at this point, and when the micrometer-screw contacts with theneedle-holder the electromagnet is energized and the armature-catchengages the graduation mark, locking the quadrant. If the handle is nowmoved toward the left, the circuit is broken before the micrometer-screwcommences to leave the needle-holder, so that danger of injury to thesesurfaces or to the matrix and measuring-needle at this time by sparkingis avoided.

Placed opposite to each other, one on each side of the gooseneck O, aretwo milling-tools J J. These tools and their mountings are identical andone description applies to both. Each is fixed on a revoluble spindlemounted on a block K, carried on a dovetail slide K, engaged in theguideway A of the bed A. The reciprocation of each block K is controlledby a micrometer-screw K as shown in Fig. l, where part of the bed-plateA is broken away to more clearly show the arrangement. The screw isoperated by a wheel-disk K on which is marked a scale, each graduationof which indicates a movement of the millingtool equal to oneten-thousandth of an inch. An index-fingerK is provided, and the toolsand screw are so arranged that when the index-fingers are at zero-pointon the graduated scales the milling-tools are a distance apart IIOexactly equal to the length of the matrix to :esmsi 8 sary in theadjustments of this machine, and to insure these preferably ahardened-steel block K, Fig. 1, is fixed in the block K to receive thethread for the micrometer-screw, and a spring K is provided, putting theblock under tension in one direction.

The operation of the machine is as follows: The matrix-holder or lowerjaw D of the slide 0 is set vertically and horizontally by means of themicrometer-screws D B in a position indicated by a chart previouslyprepared giving the required position of their respective graduateddisks for each character, so that the matrix to be measured when placedupon the lower jaw will present a certain spot on the face of the drivencharacter to the measuring or positioning needle F. The camblock handleF is lowered. The spring F presses the needle'holder forward into theposition shown in Fig. 7, in which position it is locked by the stop FThe operator lays the matrix L on and moves it gently along the lowerjaw or holder until the needle-point is in contact with the selectedpoint on the character face, when the upper jaw is lowered and thematrix firmly gripped. The cam-block handle is then raised, removing thepositioning-needle from the matrix-drive. The milling-tools J J arenormally placed relatively to the needle-point when the needle is in itsadvanced and locked position so as to give the matrix its normal lengthand depth of drive. The slide 0 is now reciprocated by means of itshandle-lever G carrying the matrix between the revolving end millingcutters J J, as shown in Fig. 8, and then returning to its normalposition. The uppergripping-jawis withdrawn and the matrix released. Thehandle 'F" of the cam-block F being in its raised position, holding theneedle-holder back in the position shown in Fig. 8, the graduatedquadrant of the micrometer screw is placed so thatits right-hand end isunder the armature catch, withdrawing the micrometer-screw to its mostdistant position from the needleholder. The operator now advances thematrix until its end is in contact with the fixed stop E as shown inFig. 6, pushing the needle (whose holder, it will be remembered, is nowonly held by the tension of the spring F the stop F being out ofengagement with the 0%- set F farther back. While holding the matrixagainst the fixed stop with one hand with the other the operator movesthe quadrantoperating handle I-I so as to advance the micrometer-screw.Directly this comes in contact with the needle-holder the electriccircuit is closed, as before described, and the armature-catch engagesone of the quadrantgraduations and locks the quadrant, and with it themicrometer-screw. The graduation engaged informs the operator within onetenthousandth of an inch of any error in the depth of the drive. Ifnormal, the armature engages the central or zero graduation. By

reversing the movement of the handle the circuit is broken, and thematrix is then allowed to leave the fixed point. If the depth of driveisfound to be too small, the matrix is discarded. If too long, it isagain subjected to the milling operation, the tool J being ad vanced byits micrometer-adjusting screw an amount suflicient to correct by thesecond end milling of the matrix the error that was found after thefirst milling.

The matrix before being justified, as above described, is preferablyshaped in a stamping-press and after milling in this machine is merelybrushed and is then ready for use, the grinding and lapping operationswhich have hithert-o been resorted to to justify and finish such bodiesbeing rendered unnecessary.

It is evident that if the apparatus be intended only to justify thedepth of drive, without reference to the length over all of the matrix,it may be constructed with only one cutter J, the cutter J beingomitted.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- 1. In a matrix-justifying machine thecombination with an adjustable milling-tool, and a movableblank-carrying slide provided with a gripping device, of apositioning-needle for engaging the operating-face of the matrix;substantially as described.

2. In a matrix-justifying machine, the combination with a plurality ofmilling-tools spaced for the passage of a blank, and a slide movablebetween said tools, and provided with a blank-holder, of a gage orpositioningneedle adapted to enter the matrix-cavity and by contact withthe working facethereof position the blank relatively to themilling-tools, substantially as described.

3. In a matrix-justifying machine, the combination with a milling-tooland a blank-carrier or slide provided with a blank holder or gripper andmovable toward and from the milling-tool, of a gage orpositioning-needle and devices operating thereon to hold it in or out ofoperative position; substantially as described.

4.. In a milling or matrix-justifying machine the combination with themilling-tool and a movable carrier provided with a blank holder orgripping device,of a positioning-needle and a cam for reciprocating saidneedle to place and hold it in and out of operative position;substantially as described.

5. In a milling or matrix-j ustifying machine, the combination of thefollowing elements, to wit a rotary milling-tool; a slide movable to--ward and from the milling-tool and provided with a gripping deviceadjustable in a plane transverse to the line'of movement of said 7slide; a gage for determining the position of said slide; and a blankgage or positioningneedle in fixed relation to said slide, whereby theadjustment of the blank in two transverse planes is effected, to bring apredetermined point on the body opposite the needle; substantially asdescribed.

6. Inamillingormatrix-justifying machine, the combination, substantiallyas described, of the following elements, to wit: a bed; two revolvingmilling-tools each carried on a block adjustable endwise on the bed by ascrew device having a graduated scale; a frame fixed transversely on thebed between the millingtools; a slide movable in guides on the frame butnormally held in contact with an adj ust able screw device having agraduated scale at one end of the frame; a gripping device of which thelower jaw is vertically adjustable on the slide by a screw device havinga graduated scale; a positioning-needle having an offset; aspring foradvancing said needle; a cam engaging the offset on the needle andprovided with a stop, said cam being so arranged that in one positionthe cam-surface and the stop hold the needle fixed in operatingposition, while in a second position, it holds the needle withdrawn; andmeans to reciprocate the slide on the frame.

7. In a measuring device for matrix-j ustifying machines, and incombination, a movable needle-such as F F-within a fixed stop, and amicrometer-screw, all in an open electric circuit, a catchsuch as Hwhich arrests the movement of the screw when the circuit is closed bycontact being made between the needle and the screw, and an actuatingdevice for the micrometer-screw adapted to break the circuit before thescrew is withdrawn from contact with the needle, substantially asdescribed.

8. In a measuring device for matrix-j ustifying machines, and incombination, a springcontrolled measuring-needle-such as F F- within afixed stop and electrically connected with one pole of a battery; aholder-such as D- adjustable in two planes to place a determined pointof the body to be measured in contact with the needle when the body isheld against the fixed stop; an electromagnet in connection with theother pole of the battery; a micrometer-screw which closes the circuitwhen brought in contact with the needle; a graduated segment such as li-which operates the screw; and a catch-such as I-I controlled by themagnet-armature which.

looks the screw directly the circuit is closed, substantially asdescribed.

9. In a measuring device for matrix-justifying machines, the combinationwith a movable measuring-needle--such as F F-Within a fixed stop inelectrical connection with one pole of a battery; a micrometer-screw; ametallic bar-such as G for operating the screw said bar carrying agraduated scale and having a slot-such as G -one side of which is anelectrical non-conductor; an electromagnet in connection with the otherpole of the battery; and an armature operating through a catch to lockthe micrometer-screw-operating bar; of a rocking handle-such as II inelectric connection with the magnet and engaged in the slot of the bar,so as to advance the screw into contact with the needle and close thecircuit when rocked in one di rection, but to break the circuit onreversal of its movement before the screw is withdrawn from contact withthe needle, substantially as described.

10. Inamatrix-j ustifyingmachine the combination substantially asdescribed. of the following elements, to wit; alongitudinally-adjustable spindle carrying a milling-tool; a slidemovable in guides at right angles to the milling-spindle and providedwith a blank holder or gripping device whose engaging faces are parallelwith the axis of the millingspindle and are adjustable in a planeperpendicular thereto; a longitudinally-movable gage orpositioning-needle supported to occupy a fixed relation to the movementsof the gripping device; and means for reciprocating said needle.

11. In a matrix-justifying machine the combination substantially asdescribed of the following elements, to wit; a reciprocating blankholderprovided with gripping devices for engaging the blank and presenting itto the milling-tool; a gage or positioning-needle for regulating theposition of the blank in its holder preliminary to its presentation tothe milling-cutter; a fixed gage in proximity to the positioning-needlefor determining the position of the latter when engaged by the milledblank; adjusting devices for the positioning-needle including anelectric contact and an electrically-actuated arresting device; and anelectric circuit including an electroinagnet controlling said arrestingdevice, said circuit being closed through the needle-adj usting devicesto arrest the latter.

12. In a matrix-justifying machine and as a means for gaging theposition or depth of the matrix the combination substantially asdescribed of the following elements, to wit; a gaging-surface; adepth-gage or positioningneedle projected beyond said gagingsurface andmovable toward and from the latter; a movable or adjusting member-suchas a micrometer-screw-for determining the position of said needle whenthe matrix is in engagement therewith and with the gaging-surface, saidadjusting member being provided with a measuring-sector and a lock; andan electric circuit'controlled by said depth-gage and its adjustingmember and including a generator and an electromagnet, the latteractuating the lock to arrest further movement of the adjusting device.

13. In a matrix-j ustifying machine,the combination with the gage orpositioning-needle by which the matrix is located in its carrierpreliminary to milling, of the following elements, to wit, a gage Whosecontact-surface lies in a plane transverse to the axis of the needle andagainst which the end of the matrix is pressed, to adjust the positionof said needle; a measuring n1echanismsuch as a micrometer-one of whosemembers contacts with the needle, to determine its position; a lock forarresting said measuring mechanism trolled by an electromagnet; anactuatingarm working between conducting and nonconducting contacts onthe adjusting member ofthe measuring mechanism; and an electric circuitincluding the electromagnet and two circuit-closing contacts the oneintermediate the actuating-arm and the said adjusting member and theother intermediate the measuring mechanism and the positioningneedle.

FRANK HINMAN PIERPONT.

Witnesses: W. J. ROGERS, R. R. WILSON.

